Generic JSON.stringify Payload Spoofer

Spoofs and adds a generic spoof attribute to any object passed to JSON.stringify (demo only)

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Generic JSON.stringify Payload Spoofer
// @version      1.0.2
// @description  Spoofs and adds a generic spoof attribute to any object passed to JSON.stringify (demo only)
// @match        *://*/*
// @run-at       document-start
// @license      MIT
// @namespace https://greasyfork.org/users/1562248
// ==/UserScript==

(function () {
  const originalStringify = JSON.stringify;

  JSON.stringify = function (value, replacer, space) {
    if (value !== null && typeof value === "object") {
      try {
        const cloned = structuredClone ? structuredClone(value) : JSON.parse(originalStringify(value));
        
        cloned.spoof = "Payload is spoofed";
        console.log("Payload is spoofed"); 
        return originalStringify.call(this, cloned, replacer, space);
      } catch (e) {}
    }

    return originalStringify.call(this, value, replacer, space);
  };
})();